One last response from brandon after reading the rest of this thread.
[quote=“KrazyKid,post:12,topic:35841"”]
Also nice to see the tooner is backing himself up, much better than the hacks we have around here producing shit and putting themselves on the top shelf, and cant back up what they preach.
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I have nothing to hide and carry no secrets. I talk to the customer as I tune their car 90% of the time. I let them watch, answer all questions and concerns. At no time will I ever say I know everything cause at that point is where I will begin to fail. You learn everyday, something is always different. We all are human and need to step up for what we do at all times
[quote=“jdaniels,post:13,topic:35841"”]
I also have that exact tune sitting on my laptop, from Andrews car. My personal opinion is that the timing table needs to be smoothed and it will also benefit from more timing advance in general. I hate that there is timing pulled NA, so I am going to set him up with a timing tricker whether he likes is or not…
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[quote=“jdaniels,post:5,topic:35865"”]
HP tuners does not offer this, but with a simple fixed resistor and a switch I can set him up to pull whatever timing he pleases by forcing the IAT sensor voltage to a predetermined value. Then you just set the timing you want to pull in the IAT Spark Advance Correction table.
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I talked to Andrew about using a timing device for the nitrous system along with the controller he has. It was not on the car when I was there to tune it. I told him the pro’s and con’s of everything and I was only able to work with what I had. The car was brought to the dyno day already setup ready to go as-is. I did not have the time nor supplies to make a timing tricker at that point. It was agreed that the minor amount (read less than 10hp) loss from the timing being taken out at all times was acceptable. Day to day I would like to have seen that car in the 26 degree range for best torque and power but I was also told that when the car was going to be raced it would be on spray so the NA numbers weren’t a true concern. I was at the mercy of the parts and car that was given to me at the time of the dyno. It would have been nice for the car to have a timing device so that the controllers could be adjusted at any point in time so the nitrous hit size could be changed after the tune was done and not locked into a certain amount.
There are areas that visually could be smoothed out however when the car is driving down the road it is not hitting those cells. There is a fine line between pretty and functional. However, more timing ( in certain areas) is not always better. Cruising around large cam’d lsx motors do not like a ton of advance or drivability issues arise. WOT the timing could be advanced for sure in NA situations but there was no controller to take it out when sprayed. Also, when only taking the time to dyno tune a car and not go out testing at the track with plug chops and reading its always best to error slightly on the safe side. Once again we are talking minor amounts of power here and we aren’t racing at a pro stock level. I know everyone strives for the max power available for their parts but im sure we all agree that last 5hp will not make a break a race if it means adding longevity to the combo.
[quote=“SSmokinn SS,post:37,topic:35809"”]
thanks Brandon. This is exactly what I needed.
Like I said, I just heard a tiny bit of the whole story which is why I was thinking the way I was. I personally am happy with the way my car turned out, and it runs damn good on the bottle. I have also done 4 plug changes and havent had a single issue…
I was just caught in a “freaking out” at the moment thing I guess. I did NOT mean to stir up this mess…if I knew it was all going to be taken this way I wouldnt have mentioned anything.
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Your welcome andrew.
I wanted to step in because I got a call the day the motor in ryan’s car let go and I then asked right away “did they determine the cause” when i was told “it was 1000ft out and just gave up the ghost”. Its always a sinking feeling for a tuner on any level to hear that a customer has an engine or transmission related problem. However, it is worse when the telephone game starts long before a root cause is determined. We all know how hearsay takes off and gets changed. The power of the internet can be feast or famine for anyone. It does not bother me that people want to speak their opinion or that we all have our two cents, just begins to bug me when information is spit out from third or later hand accounts. I always prefer people to speak their mind and fully accept at times the truth hurts but false information hurts worse.
[quote=“K20power”"]
A tune can absolutely cause a spun bearing.
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A bad tune can beat the bearing right out that is true. Although with a cast piston like the LSx motors have they will long powder away to nothing before you knock a bearing out. If it were a forged motor I would agree more.
[quote=“SSmokinn SS,post:7,topic:35023"”]
just from checking plugs you can tell if its detonating or not
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Quoted for truth! But make sure you dont confuse carbon specs with detonation.
[quote=“GermanPSI,post:40,topic:35689"”]
Not standing up for any tuner here but im going to have to say a spun bearing and shooting a rod through the block is NOT tuning related. Yes it can happen…but not common. I could see if we were talking about a melted piston here or something but were not
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In the awd tbss its such a common thing for the rod bearings to spin its sick, especially the #5 and #6. Keeping up with oil changes and putting in a little extra oil is about the only thing you can do for the trucks. There are a few people who have modded the awd pan and done some external oiling tricks but since the front diff goes through the oil pan its not an easy swap. Its hard to spend $2000+ for the oil pan, oil mods and labor and not do anything else performance. Also, people look at you funny when you have an SUV with an accusump on it.
Spitting a rod out of a motor is never a good thing. Its far less common with a cast rod and PM rod like the LSx unless something major went wrong. I have only had 2 customer cars in 9 years spit a stock rod out of an LS motor and both were getting hit with over 400hp worth of nitrous off the footbrake from idle. It was dumb and it was agreed it was no where near safe but we were trying to max out the car the best we could. Both times the rod bent in half then finally snapped. We just went far outside the rhelm of what the stock parts could handle and knew we were on borrowed time everytime.
[quote=“GermanPSI,post:30,topic:35177"”]
exactly, figured the motor was apart anyways in kdubs ride so im curious to see how the cylinder walls and pistons looked
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Motor is still in the truck. Im sure the piston will have some carbon build up like any other DD would. At 80k+ on an ls2 im sure the walls will look fine and at most need a slight hone to take the small ridge off the top of the bore. I do fear the condition of the crank and rod though knowing the heat a spun rod bearing creates. Once again its just a matter of when not if.